THE MAIN __________ BLOCK IN THE NEGOTIATIONS HAS BEEN THE LACK OF...
2. The main __________ block in the negotiations has been the lack of trust on both
sides.
a) grumbling
b) stumbling
c) fumbling
d) mumbling
a) This is not the correct expression. The verb grumble means to complain. Try again!
b) Well done! This is the correct answer. A stumbling block is an obstacle that prevents
progress from being made.
c) This is not the correct expression. To fumble with something means to move
something about in your hands in an awkward or clumsy way. Try again!
d) This is not the correct expression. To mumble means to speak quietly and without
pronouncing your words clearly.